Issue |
E3S Web Conf.
Volume 545, 2024
2024 9th International Conference on Sustainable and Renewable Energy Engineering (ICSREE 2024)
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Article Number | 03001 | |
Number of page(s) | 7 | |
Section | Energy Chemical Engineering and Thermal Storage Technology | |
DOI | https://doi.org/10.1051/e3sconf/202454503001 | |
Published online | 04 July 2024 |
Biodiesel preparation from Camelina sativa oil by homogeneous and heterogeneous transesterification
Slovak University of Technology in Bratislava, Faculty of Chemical and Food Technology, Radlinského 9, 812 37
* Corresponding author: miroslava.beresova@stuba.sk
Biodiesel is one of the possible alternatives to diesel fuel to address the issue of fossil fuels and their impact on the environment. Substituting homogeneous transesterification with heterogeneous offers advantages such as improved catalyst and product separation, catalyst regeneration, and avoidance of saponification during the reaction. To compare homogeneous and heterogeneous transesterification, the commonly used homogenous catalyst NaOH was tested. As a heterogeneous catalyst, a mixed oxide prepared from hydrotalcite with added nickel in its structure was used. By employing suitable conditions, it is possible to achieve biodiesel through heterogeneous transesterification with a comparable FAME (Fatty acid methyl ester) content to homogeneous transesterification, meeting the standardized value of over 96.7 wt.%. Implementing a two-step heterogeneous transesterification process decreases the reaction time needed to reach the desired FAME quantity. Furthermore, following heterogeneous transesterification, glycerol as a valuable secondary product showed visibly higher purity.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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